CN103624460B - A kind of positioning and clamping mechanism - Google Patents

A kind of positioning and clamping mechanism Download PDF

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Publication number
CN103624460B
CN103624460B CN201310607401.9A CN201310607401A CN103624460B CN 103624460 B CN103624460 B CN 103624460B CN 201310607401 A CN201310607401 A CN 201310607401A CN 103624460 B CN103624460 B CN 103624460B
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CN
China
Prior art keywords
contiguous block
block
cylinder
pressure arm
template
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CN201310607401.9A
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Chinese (zh)
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CN103624460A (en
Inventor
周祥兵
成秋云
谢纬
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Chery Automobile Co Ltd
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Chery Automobile Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/02Assembly jigs

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

The invention discloses a kind of positioning and clamping mechanism, belong to manufacturing clamp positioning mechanism field.This mechanism at least comprises: working portion, pressure arm, limited block, template, runners, drive part, cylinder Connecting groups, and the side of described runners is provided with template, described template is provided with drive part, cylinder Connecting groups; Described cylinder Connecting groups is provided with pressure arm, is provided with limited block between described pressure arm and described template, described pressure arm is provided with working portion, described working portion is located and clamping smallclothes by drive part.The uniformity of the precision of effective guarantee welding support mounting points position and part location; Owing to arriving the dead point of this mechanism after briquetting compression finding, so clamping force is comparatively large, the stability of fixture location can be met; Structure of the present invention is simple, takes up room little, easy and simple to handle, is applicable to location and the clamping of the smaller part of size.

Description

A kind of positioning and clamping mechanism
Technical field
The present invention relates to manufacturing clamp positioning mechanism field, particularly a kind of positioning and clamping mechanism.
Background technology
Body in white is the carrier of auto assembly, and most of auto assembly parts are all be arranged on body in white by welding support.Normally first mounting points is set on welding support, then total component is assemblied in the mounting points of welding support, then is arranged on body in white.Therefore, the positional precision of welding support directly has influence on the assembly precision of total piece installing and overall appearance degree and CSAT.
In vehicle body design, due to the impact of space structure and moulding, the planform that these welding supports are general ununified, size is all smaller, but these little welding supports have the vital mounting points needed for total piece installing, its position degree requires very high, therefore, how a very important consideration key element in vehicle body preconsolidation stress is become to the location that these welding supports are effectively stable, in automobile body clamp layout design and countersign, also need careful consideration.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
Slightly large for size, the more sufficient part in space, at present, the general mechanism adopting alignment pin to add cylinder-pressing, after namely alignment pin is first located, re-uses movable device such as cylinder etc. and compresses, ensure the position stability of mounting bracket.This mechanism positioning precision is high, good stability, but the space taken is larger, otherwise after clamp mechanism designed, carries out welding operation without space, and this kind of detent mechanism is only applicable to larger-size mounting bracket location.
For the part that size is less, too much hold-down mechanism cannot be arranged because space is little, at present, only adopt an alignment pin to add profile when general jig Design and control, by magnet, plate and fixture are fitted.The space that this detent mechanism takies is little, is also applicable for the part that size is less, but this scheme location also also exists certain defect: because the laminating of part and plate is controlled by magnet, the suction of magnet is little, and unstable, easily loses efficacy; The Acceptable life of magnet is short, needs often to change, and often can there is magnet replacing and cause magnet cannot play positioning action not in time in produced on-site; The six-freedom degree of part is not locked completely, therefore cannot ensure the uniformity that part is located, and the precision of installing hole also cannot be guaranteed.
Summary of the invention
In order to solve the problem of prior art, embodiments provide a kind of positioning and clamping mechanism.Meet smallclothes Clamp blocks while location, the uniformity that the precision of guarantee welding support mounting points position and part are located and stability.Described technical scheme is as follows:
A kind of positioning and clamping mechanism, at least comprise: working portion, pressure arm, limited block, template, runners, drive part, cylinder Connecting groups, the side of described runners is provided with template, described template is provided with drive part, cylinder Connecting groups; Described cylinder Connecting groups is provided with pressure arm, is provided with limited block between described pressure arm and described template, described pressure arm is provided with working portion, described working portion is located and clamping smallclothes by drive part.
Described working portion at least comprises: cylinder, the first contiguous block, the second contiguous block, the 3rd contiguous block, fixed block, regulation block, alignment pin, briquetting, handle.
Described first contiguous block is arranged on pressure arm, and described first contiguous block is provided with cylinder, and described air cylinder guide rod upper end connecting handle, alignment pin is equipped with in lower end.
Described air cylinder guide rod is provided with the second contiguous block, described second contiguous block connects the 3rd contiguous block by rotating shaft, described 3rd contiguous block connects briquetting by rotating shaft, and described 3rd contiguous block is around the axis of rotation on the second contiguous block, and described briquetting is around the axis of rotation on the 3rd contiguous block.
Described first contiguous block is fixedly connected with fixed block, and described fixed block is connected by fulcrum post with briquetting, and described briquetting is around the axis of rotation on fixed block.
Described first contiguous block is fixedly connected with regulation block, between described first contiguous block and regulation block, is provided with adjustment pad; Described cylinder and the first contiguous block, be provided with adjustment pad between described first contiguous block and pressure arm.
Described drive part at least comprises: clamping cylinder, fulcrum post; Described clamping cylinder is connected on template by fulcrum post, and described clamping cylinder rotates around fulcrum post.
Described cylinder Connecting groups at least comprises: fulcrum post, hanger, rotating shaft, contiguous block; Described contiguous block bottom is connected on template by fulcrum post, rotates around fulcrum post, and described contiguous block top is connected with pressure arm by bolt and pin; Described pressure arm is connected with hanger by rotating shaft, and described hanger connects clamping cylinder, and described clamping cylinder is around axis of rotation.
Described limited block comprises upper limit position block, lower position block, and described upper limit position block is connected with described pressure arm by edge and bolt, and described lower position block is connected with described template by edge and bolt.
Installed surface and the finding of described regulation block are fitted, and described handle strip dynamic air cylinder guide rod, alignment pin enter in the locating hole of finding; Described air cylinder guide rod drives the second contiguous block to advance, and described second contiguous block drives the 3rd contiguous block to advance, and described 3rd contiguous block drives briquetting to rotatably compress finding around fixed block central shaft.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
Drive working portion to rotate by drive part, realize Clamp blocks while smallclothes location, effectively ensure the precision of welding support mounting points position and the uniformity of part location; Owing to arriving the dead point of this mechanism after briquetting compression finding, so clamping force is comparatively large, the stability of fixture location can be met; Structure is simple, takes up room little, easy and simple to handle, is applicable to location and the clamping of the smaller part of size.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the axonometric drawing of the positioning and clamping mechanism structural representation that the embodiment of the present invention provides;
Fig. 2 is the front view of the positioning and clamping mechanism structural representation that the embodiment of the present invention provides;
Fig. 3 is the top view of the positioning and clamping mechanism structural representation that the embodiment of the present invention provides;
Fig. 4 is the left view of the positioning and clamping mechanism structural representation that the embodiment of the present invention provides;
Fig. 5 is the standoff features schematic diagram of the positioning and clamping mechanism that the embodiment of the present invention provides.
In figure, each symbol represents that implication is as follows:
1 working portion,
1.1 cylinders, 1.2 first contiguous blocks, 1.3 second contiguous blocks, 1.4 the 3rd contiguous blocks, 1.5 fixed blocks, 1.6 regulation blocks, 1.7 alignment pins, 1.8 briquettings, 1.9 handles;
2 pressure arms;
3 limited blocks, 3.1 upper limit position blocks, 3.2 lower position blocks;
4 templates;
5 runners;
6 drive parts,
6.1 clamping cylinders, 6.2 fulcrum posts;
7 cylinder Connecting groups,
7.1 fulcrum posts, 7.2 hangers, 7.3 rotating shafts, 7.4 contiguous blocks.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, embodiments provide a kind of positioning and clamping mechanism, for location and the clamping of the smaller part of size.This mechanism at least comprises: the parts such as working portion 1, pressure arm 2, limited block 3, template 4, runners 5, drive part 6, cylinder Connecting groups 7; Particularly, as preferably, the side of described runners 5 is provided with template 4, and template 4 bottom is provided with drive part 6, and top is provided with cylinder Connecting groups 7; Described cylinder Connecting groups 7 is provided with pressure arm 2, is provided with limited block 3 between pressure arm 2 and template 4, pressure arm 2 is provided with working portion 1, working portion 1, under drive part 6 acts on, realizes Clamp blocks while smallclothes location.
Described working portion 1 at least comprises: the parts such as cylinder 1.1, first contiguous block 1.2, second contiguous block 1.3, the 3rd contiguous block 1.4, fixed block 1.5, regulation block 1.6, alignment pin 1.7, briquetting 1.8, handle 1.9; Described first contiguous block 1.2 is arranged on pressure arm 2, and the first contiguous block 1.2 is provided with cylinder 1.1, the guide rod threaded upper ends connecting handle 1.9 in cylinder 1.1, and alignment pin 1.7 is equipped with in lower end; Guide rod simultaneously on cylinder 1.1 is provided with the second contiguous block 1.3, second contiguous block 1.3 connects the 3rd contiguous block 1.4 by rotating shaft, 3rd contiguous block 1.4 connects briquetting 1.8 by rotating shaft, described 3rd contiguous block 1.4 can around the axis of rotation on the second contiguous block 1.3, and briquetting 1.8 can around the axis of rotation on the 3rd contiguous block 1.4; And be fixedly connected with fixed block 1.5 on described first contiguous block 1.2, fixed block 1.5 is connected by fulcrum post with briquetting 1.8, and briquetting 1.8 can around the axis of rotation on fixed block 1.5; Described first contiguous block 1.2 is also fixedly connected with between regulation block 1.6, first contiguous block 1.2 and regulation block 1.6 and is provided with adjustment pad, in order to regulate the position of regulation block 1.6; In order to ensure the adjustable of mechanism, described cylinder 1.1 and the first contiguous block 1.2, be all provided with adjustable pad between described first contiguous block 1.2 and pressure arm 2, ensures that integrated model is two-way adjustable.
Described drive part 6 at least comprises: clamping cylinder 6.1, fulcrum post 6.2; Described clamping cylinder 6.1 is connected on template 4 by fulcrum post 6.2, and clamping cylinder 6.1 rotates around fulcrum post 6.2 under compressed-air actuated driving.
Described cylinder Connecting groups 7 at least comprises: fulcrum post 7.1, hanger 7.2, rotating shaft 7.3, contiguous block 7.4; Described contiguous block 7.4 bottom is connected to template 4 top by fulcrum post 7.1, can rotate around fulcrum post 7.1, and contiguous block 7.4 top is connected with pressure arm 2 by bolt and pin; Pressure arm 2 is connected with hanger 7.2 by rotating shaft 7.3, and hanger 7.2 connects clamping cylinder 6.1, and clamping cylinder 6.1 rotates around rotating shaft 7.3.
Shown in Figure 4, described limited block 3 is divided into upper limit position block 3.1, lower position block 3.2 two parts, and upper limit position block 3.1 is connected with pressure arm 2 by edge and bolt, and lower position block 3.2 is connected with template 4 by edge and bolt.
The operation principle of the embodiment of the present invention: when clamping cylinder 6.1 is ventilated, clamping cylinder 6.1 drives pressure arm 2 and working portion 1 to rotate around the fulcrum post 7.1 on template 4, after upper limit position block 3.1 and lower position block 3.2 are fitted, the movement travel of clamping cylinder 6.1 puts in place, pressure arm 2 and working portion 1 stop motion.
Then assemble small size part, its installed surface and regulation block 1.6 are fitted, Manual operation handle 1.9, handle 1.9 advances with the guide rod on dynamic air cylinder 1.1, and drive alignment pin 1.7 to advance and put in place, alignment pin 1.7 enters in the locating hole of finding; Simultaneously, guide rod on cylinder 1.1 drives the second contiguous block 1.3 to advance, and the second contiguous block 1.3 drives the 3rd contiguous block 1.4 to advance, and the 3rd contiguous block 1.4 drives briquetting 1.8 to rotate around the central axis of circular holes on fixed block 1.5, until compression finding, complete the location to finding and clamping.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (4)

1. a positioning and clamping mechanism, at least comprise: working portion (1), pressure arm (2), limited block (3), template (4), runners (5), drive part (6), cylinder Connecting groups (7), the side of described runners (5) is provided with template (4), described template (4) is provided with drive part (6), cylinder Connecting groups (7); Described cylinder Connecting groups (7) is provided with pressure arm (2), limited block (3) is provided with between described pressure arm (2) and described template (4), described pressure arm (2) is provided with working portion (1), described working portion (1) by drive part (6) to size smaller part location while and clamp; It is characterized in that, described working portion (1) at least comprises: cylinder (1.1), the first contiguous block (1.2), the second contiguous block (1.3), the 3rd contiguous block (1.4), fixed block (1.5), regulation block (1.6), alignment pin (1.7), briquetting (1.8), handle (1.9); Described first contiguous block (1.2) is arranged on pressure arm (2), described first contiguous block (1.2) is provided with cylinder (1.1), guide rod upper end connecting handle (1.9) in described cylinder (1.1), alignment pin (1.7) is equipped with in lower end; Described cylinder (1.1) guide rod is provided with the second contiguous block (1.3), described second contiguous block (1.3) connects the 3rd contiguous block (1.4) by rotating shaft, described 3rd contiguous block (1.4) connects briquetting (1.8) by rotating shaft, described 3rd contiguous block (1.4) is around the axis of rotation on the second contiguous block (1.3), and described briquetting (1.8) is around the axis of rotation on the 3rd contiguous block (1.4); Described first contiguous block (1.2) is fixed with fixed block (1.5), described fixed block (1.5) is connected by fulcrum post with briquetting (1.8), and described briquetting (1.8) is around the axis of rotation on fixed block (1.5); Described first contiguous block (1.2) is fixed with regulation block (1.6), between described first contiguous block (1.2) and regulation block (1.6), is provided with adjustment pad; Described cylinder (1.1) and the first contiguous block (1.2), be provided with adjustment pad between described first contiguous block (1.2) and pressure arm (2); Installed surface and the finding of described regulation block (1.6) are fitted, and described handle (1.9) band dynamic air cylinder (1.1) guide rod, alignment pin (1.7) enter in the locating hole of finding; Described cylinder (1.1) guide rod drives the second contiguous block (1.3) to advance, described second contiguous block (1.3) drives the 3rd contiguous block (1.4) to advance, and described 3rd contiguous block (1.4) drives briquetting (1.8) to rotatably compress finding around fixed block (1.5) central shaft.
2. positioning and clamping mechanism according to claim 1, is characterized in that, described drive part (6) at least comprises: clamping cylinder (6.1), fulcrum post (6.2); Described clamping cylinder (6.1) is connected on template (4) by fulcrum post (6.2), and described clamping cylinder (6.1) rotates around fulcrum post (6.2).
3. positioning and clamping mechanism according to claim 1, it is characterized in that, described cylinder Connecting groups (7) at least comprises: fulcrum post (7.1), hanger (7.2), rotating shaft (7.3), contiguous block (7.4); Described contiguous block (7.4) bottom is connected on template (4) by fulcrum post (7.1), rotate around fulcrum post (7.1), described contiguous block (7.4) top is connected with pressure arm (2) by bolt and pin; Described pressure arm (2) is connected with hanger (7.2) by rotating shaft (7.3), described hanger (7.2) connects clamping cylinder (6.1), and described clamping cylinder (6.1) rotates around rotating shaft (7.3).
4. positioning and clamping mechanism according to claim 1, it is characterized in that, described limited block (3) comprises upper limit position block (3.1), lower position block (3.2), described upper limit position block (3.1) is connected with described pressure arm (2) by edge and bolt, and described lower position block (3.2) is connected with described template (4) by edge and bolt.
CN201310607401.9A 2013-11-25 2013-11-25 A kind of positioning and clamping mechanism Active CN103624460B (en)

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Application Number Priority Date Filing Date Title
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CN103624460B true CN103624460B (en) 2015-10-28

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CN106695224A (en) * 2016-12-30 2017-05-24 芜湖中瑞汽车零部件有限公司 Clamp used for welding of automobile auxiliary frame upper sheet body
CN106736165A (en) * 2016-12-30 2017-05-31 芜湖中瑞汽车零部件有限公司 A kind of automobile accessory frame clamp for machining
CN106629318B (en) * 2017-02-24 2019-02-15 中国汽车工业工程有限公司 A kind of elevator position control device
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CN106984938B (en) * 2017-05-20 2023-09-15 上汽通用五菱汽车股份有限公司 Frock location structure
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